Cushion pad

ABSTRACT

The present application relates to a cushion pad, which has flexibility. The cushion pad comprises an outer foot arch portion, an inner foot arch portion and a foot arch groove. The outer foot arch portion is formed by extending from one end of the cushion pad to the other end of the cushion pad, and the outer foot arch portion comprises a middle foot portion and a heel portion; the middle foot portion is disposed in the end of the outer foot arch portion; the heel portion is disposed in the other end of the outer foot arch portion that is opposing the middle foot portion and the heel portion is connected to the middle foot portion.

CROSS-REFERENCE TO RELATED APPLICATIONS

This application claims priority from Taiwanese Application No. 105212213, titled “Cushion Pad,” filed on Aug. 11, 2016, the contents of which are incorporated herein by reference in their entirety.

FIELD OF THE INVENTION

The application relates to a shoe liner, in particular, it is a cushion pad placed in shoes.

BACKGROUND OF THE INVENTION

In earlier ages, in order to protect feet from being hurt by rough ground, people wore shoes to protect their feet. Later on, as people's living conditions improved, shoes became required to not only protect people's feet but also to have desirable shape, style and comfort. No matter how people are walking or standing, their feet are always their necessary support. Accordingly, feet bear the pressure of overall human body weight. In particular, when people are wearing flat shoes or low-heeled shoes, the location which bears the most body weight is the rear part of foot. As a result, in the case when the soles or insoles of the shoes are very thin, the pressure generated when people are walking on ground will be applied on their feet. After a long period of time, this may result in various foot diseases, such as plantar fasciitis, foot peripheral nerve pain, foot joint pain, foot swelling and inflammation, etc.

In order to address the issues mentioned above, the existing technologies in the art typically use a whole piece of insole to increase the thickness of the bottom of shoes, which can only create a certain comfort for a people who wear such shoes. However, it is noted that such flat insole is unable to provide a support to feet arches on the bottom of the foot. In addition, such flat insole may also result in a very stiff shoe bottom, which prevents the shoe bottom from closely supporting the structure of human foot bottom. Accordingly, such insole makes it difficult for feet to engage in flexible movements and activities.

SUMMARY OF THE INVENTION

In order to address the issues mentioned above, one aim of the present application is to provide a cushion pad to reduce the interaction between feet and the ground or between feet and a shoe bottom during walking.

For the foregoing purpose, the present application provides a cushion pad, which has flexibility. The cushion pad comprises an outer foot arch portion, an inner foot arch portion and a foot arch groove. The outer foot arch portion is formed by extending from one end of the cushion pad to the other end of the cushion pad, and the outer foot arch portion comprises a middle foot portion and a heel portion; the middle foot portion is disposed in on end of the outer foot arch portion; the heel portion is disposed in the other end of the outer foot arch portion that is opposing the middle foot portion and the heel portion is connected to the middle foot portion. Moreover, the inner foot arch portion is disposed on the cushion pad and is adjacent to the middle foot portion of the outer foot arch portion; the foot arch groove is disposed between the middle foot portion of the outer foot arch portion and the inner foot arch portion.

Preferably, each of the outer foot arch portion and the inner foot arch portion comprises an air pad, and the air pads have been disposed within the outer foot arch portion and the inner foot arch portion, respectively. More preferably, the cushion pad further comprises a connection path. The connection path has been disposed in the foot arch groove. The connection path functions to communicate the air pad within the outer foot arch portion with the air pad within the inner foot arch portion.

Preferably, the cushion pad is made from a material of thermoplastic polyurethane (TPU) elastomer.

In order to achieve the aim above provided, the present application further provides a cushion insole, which comprises the cushion pad described above, wherein the cushion pad may be disposed on the cushion insole in a protruding manner, disposed on the cushion insole in a recessing manner, disposed within the cushion insole, or disposed below the cushion insole.

For the cushion pad provided in the present application, the shape of the outer foot arch portion corresponds to a human foot's mid and rear parts, and the inner foot arch portion closely supports a human foot's inner foot arch, which helps to support the foot bottom, as well as disperse the pressure applied on the person's feet. Accordingly, it is able to reduce the incidence of plantar fasciitis. In addition, the air pad within the outer foot arch portion and the air pad within the inner foot arch portion are able to absorb the resilient force applied by the ground during walking. Therefore, the present application provides a cushion pad that is able to reduce the interaction between a walker's feet and the ground or between the walker's feet and a shoe bottom.

BRIEF DESCRIPTION OF THE DRAWINGS

These and other features, aspects and advantages of the present invention will become better understood with regard to the following description, appended claims, and accompanying figures where:

FIG. 1 is a perspective external view of the first preferred embodiment of the present application.

FIG. 2 is a perspective external view of the second preferred embodiment of the present application.

FIG. 3 is a perspective exploded view of one state of the second preferred embodiment of the present application when it is in use.

FIG. 4 is a schematic view of another state of the second preferred embodiment of the present application when it is in use.

FIG. 5 is a perspective exploded view of one state of the third preferred embodiment of the present application when it is in use.

FIG. 6 is a schematic view of a state of the third preferred embodiment of the present application when it is in use.

FIG. 7 is a schematic view of another state of the third preferred embodiment of the present application when it is in use.

DETAILED DESCRIPTION

Description of element symbols: 10 cushion pad 11 outer foot arch portion 111 middle foot portion 112 heel portion 113 air pad 12 inner foot arch portion 121 air pad 13 foot arch groove 14 connection path 20 shoe lining 30 cushion insole

In reference to FIG. 1, for the cushion pad 10 according to the first preferred embodiment of the present application, the cushion pad 10 has flexibility. The cushion pad 10 comprises an outer foot arch portion 11, an inner foot arch portion 12 and a foot arch groove 13. The outer foot arch portion 11 is formed by extending from one end of the cushion pad 10 to the other end of the cushion pad, the shape of the outer foot arch portion 11 corresponds to human foot's mid and rear parts, the outer foot arch portion 11 comprises a middle foot portion 111 and a heel portion 112; the middle foot portion 111 is disposed in on end of the outer foot arch portion 11; the heel portion 112 is disposed in the other end of the outer foot arch portion that is opposing the middle foot portion 111, and the heel portion 112 is connected to the middle foot portion 111. In this specific embodiment, the width of the middle foot portion 111 is smaller than the width of the heel portion 112. Moreover, the inner foot arch portion 12 is disposed on the cushion pad 10 and is adjacent to the middle foot portion 111 of the outer foot arch portion 11, and the inner foot arch portion 12 closely supports a human foot's inner foot arch; the foot arch groove 13 is disposed between the middle foot portion 111 of the outer foot arch portion 11 and the inner foot arch portion 12. The location of the foot arch groove 13 corresponds to the boundary between the human foot outer foot arch and inner foot arch. In the specific state of implementation, the cushion pad 10 is made from a material of thermoplastic polyurethane (TPU) elastomer.

In reference to FIG. 2 and FIG. 3, the second preferred embodiment of the cushion pad 10 of the present application is similar to the first preferred embodiment described above. In addition, the outer foot arch portion 11 and the inner foot arch portion 12 comprise the air pad 113 and air pad 121, respectively, in which the air pad 113 and the air pad 121 are respectively disposed within the outer foot arch portion 11 and the inner foot arch portion 12. More specifically, the cushion pad 10 further comprises a connection path 14, and the connection path 14 is disposed in the foot arch groove 13, the air pad 113 of the outer foot arch portion 11 communicates to the air pad 121 of the inner foot arch portion 12 by way of the connection path 14. In the specific state of implementation, the cushion pad 10 is made through a high frequency press-molding approach. In its implementation, as shown in FIG. 4, the cushion pad 10 may be placed on top of a shoe lining 20. In this way, when a person is wearing the shoes, the person's foot bottom will be provided with a desirable supporting and buffering function.

In reference to FIGS. 5 to 7, the third embodiment of the present application further comprises a cushion insole 30, which comprises the cushion pad 10 that may be disposed on the cushion insole 30 in a protruding manner, disposed on the cushion insole 30 in a recessing manner, disposed within the cushion insole 30 or disposed below the cushion insole 30.

The above descriptions are just a few preferred examples of the present application, rather than limitations to the scope of the present application in any way. Without departing from the technical scope of the present application, a person of ordinary skill in the art may make any equivalent embodiments with local change or modification based on the technical contents disclosed in the present application, which should be within the scope of the present application as well. 

What is claimed is:
 1. A cushion pad, which has flexibility, the cushion pad comprising: an outer foot arch portion, which is formed by extending from one end of the cushion pad to the other end of the cushion pad, and the outer foot arch portion comprises: a middle foot portion, which is disposed in end of the outer foot arch portion; and a heel portion, which is disposed in the other end of the outer foot arch portion that is opposing the middle foot portion, and the heel portion is connected to the middle foot portion; an inner foot arch portion, which is disposed on the cushion pad and is adjacent to the middle foot portion of the outer foot arch portion; and a foot arch groove, which is disposed between the middle foot portion of the outer foot arch portion and the inner foot arch portion.
 2. The cushion pad as set forth in claim 1, wherein each of the outer foot arch portion and the inner foot arch portion is provided with an air pad, and the air pads are disposed within the outer foot arch portion and the inner foot arch portion, respectively.
 3. The cushion pad as set forth in claim 2, wherein the cushion pad further comprises a connection path, which is disposed in the foot arch groove; and the connection path communicates with the air pad within the outer foot arch portion and the air pad within the inner foot arch portion.
 4. The cushion pad as set forth in any one of claims 1 to 3, wherein a material thereof is thermoplastic polyurethane (TPU) elastomer.
 5. A cushion insole, which comprises the cushion pad set forth in any one of claims 1 to 4, wherein the cushion pad may be disposed on the cushion insole in a protruding manner, disposed on the cushion insole in a recessing manner, disposed within the cushion insole or disposed below the cushion insole 